#Starry night telescope control plus
"The most precise planetary positions available (using JPL ephemerides) plus an expanded asteroid catalog with highlighted families and groups." The calculation of the local circumstances of lunar eclipses is based upon the data from the Five Millenium Canon of Lunar Eclipses -1999 to 3000 (Fred Espenak, NASA's GSFC)."Īs for Starry Night, which I have found reviews concerning its accuracy, they say: "The calculation of the local circumstances of solar eclipses is based upon the data from the Five Millenium Canon of Solar Eclipses -1999 to 3000 (Fred Espenak, NASA's GSFC) with Besselian Elements provided by Jean Meuus. "All eclipse predictions were performed by Fred Espenak and Jean Meeus (NASA's GSFC)." "The ephemeris calculation is based upon Steve Moshier's analytical ephemeris using trigonometric expansions for the earth and planets and the lunar ephemeris ELP2000-85 of Chapront-Touzé and Chapront for the moon, both adjusted to Jet Propulsion Laboratory's DE404 (see There are further adjustments in Alcyone Ephemeris, some optional, to JPL's more recent DE406, the most accurate long-term ephemeris. Unfortunately, Alcyone is not mentioned here, and I have found no review whatsoever or comment about it's accuracy. Local time/location/declination accuracy with regard to solar eclipses/occultationsĪ benchmark will be proposed to check planetarium computer programsĪn evaluation of some 20 computer programsĪnd of course I want to thank people who helped me with this! This will be done along the following lines:" a specification is made on the features needed in such a program.Īn evaluation will be given of the accuracy reachable with present theories.Ī sensitivity analysis will be made with regard to:Īzimuth/altitude accuracies of normal celestial events "This page will provide some insight on who to make a choice in planetarium computer programs.
#Starry night telescope control software
Does anyone know whether the Alcyone software is reliable? It does not go so back in time as I would need it to, but -3000 is far better than 1600AD.įurther clarification: I have found the following webpage ( ) and I quote: So, I'm stuck trying to find another way of getting the information I need (outside of pointing to each object and writing the information by hand). The problem is that, 2 years after buying Starry Night and being confirmed a bug makes it impossible to export ephemerides prior to 1600 AD, I'm told it was never part of the features at all - contrary to their marketing material. Starry night ( ) is more focussed on simulating the night sky whereasĪlcyone ( ) is more focussed on creating data tables.īoth programs provide simulation of the past (Starry Night going farther into the past while Alcyone stops at -3000), which is actually what I am looking for.
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